Authenticate the user by checking for the existence of a certificate
chain, and optionally asking a trust manager to validate that we trust
this user.
// Have we already authenticated someone?
Principal principal = request.getUserPrincipal();
//String ssoId = (String) request.getNote(Constants.REQ_SSOID_NOTE);
if (principal != null) {
if (containerLog.isDebugEnabled())
containerLog.debug("Already authenticated '" + principal.getName() + "'");
// Associate the session with any existing SSO session in order
// to get coordinated session invalidation at logout
String ssoId = (String) request.getNote(Constants.REQ_SSOID_NOTE);
if (ssoId != null)
associate(ssoId, request.getSessionInternal(true));
return (true);
}
// NOTE: We don't try to reauthenticate using any existing SSO session,
// because that will only work if the original authentication was
// BASIC or FORM, which are less secure than the CLIENT_CERT auth-type
// specified for this webapp
//
// Uncomment below to allow previous FORM or BASIC authentications
// to authenticate users for this webapp
// TODO make this a configurable attribute (in SingleSignOn??)
/*
// Is there an SSO session against which we can try to reauthenticate?
if (ssoId != null) {
if (log.isDebugEnabled())
log.debug("SSO Id " + ssoId + " set; attempting " +
"reauthentication");
// Try to reauthenticate using data cached by SSO. If this fails,
// either the original SSO logon was of DIGEST or SSL (which
// we can't reauthenticate ourselves because there is no
// cached username and password), or the realm denied
// the user's reauthentication for some reason.
// In either case we have to prompt the user for a logon
if (reauthenticateFromSSO(ssoId, request))
return true;
}
*/
// Retrieve the certificate chain for this client
if (containerLog.isDebugEnabled())
containerLog.debug(" Looking up certificates");
X509Certificate certs[] = (X509Certificate[])
request.getAttribute(Globals.CERTIFICATES_ATTR);
if ((certs == null) || (certs.length < 1)) {
request.getCoyoteRequest().action
(ActionCode.ACTION_REQ_SSL_CERTIFICATE, null);
certs = (X509Certificate[])
request.getAttribute(Globals.CERTIFICATES_ATTR);
}
if ((certs == null) || (certs.length < 1)) {
if (containerLog.isDebugEnabled())
containerLog.debug(" No certificates included with this request");
response.sendError(HttpServletResponse.SC_BAD_REQUEST,
sm.getString("authenticator.certificates"));
return (false);
}
// Authenticate the specified certificate chain
principal = context.getRealm().authenticate(certs);
if (principal == null) {
if (containerLog.isDebugEnabled())
containerLog.debug(" Realm.authenticate() returned false");
response.sendError(HttpServletResponse.SC_UNAUTHORIZED,
sm.getString("authenticator.unauthorized"));
return (false);
}
// Cache the principal (if requested) and record this authentication
register(request, response, principal, Constants.CERT_METHOD,
null, null);
return (true);
